Toy.



PATENTED OCT. l0, 1905.

E. P. LEHMANN.

TOY.

APPLICATION FILED MAY31.1904.

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UNITED STATES PATENT OFFICE.

TOY.

Specification of Letters Patent.

Patented Oct. 10, 1905.

Application tiled May 31,1904. Serial No. 210,516.

Be it known that I, ERNST PAUL LEHMANN, a subject of the King ofPrussia, German Emperor, residing at No. 6 Plauerstrasse,Brandenburg-on-the-Havel, in the Kingdom of Prussia, Germany, haveinvented certain new and useful Improvements in Toys; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to an improved toy representing' a human or ananimal ligure; and the object of my invention is to produce in the saidfigure a combined oscillating' and bending' motion of limbs, such as theleg's or arms, imitating as much as possible the natural normalmovements of such limbs and employing means of great simplicity forproducing' such motions.

In the accompanying' drawings I have represented my invention applied tothe legs of a human ligure, and in Figures l, 2, 3, and i the lower partof the body with the legs and mechanism to impart motion to thc same areshown in vertical section, each successive figure representing' anotherposition of the parts corresponding' to four successive positions of therevolving' crank-shaft, every position showing the cranks advanced byninety degrees with relation to the previous position. Eig'. 5 is aseparate view of the crank-shaft.

According to the natural movements of the human legs, the imitation ofwhich is to be obtained, a reciprocating' oscillating' motion is to beimparted to the thighs v.' and an alternating' bending and stretchingmotion to the lower legs I am aware that mechanical means to obtain acombined motion of this kind are not new, but have been employed beforein toys and mechanical animals. The purpose of my invention is toprovide means of greater simplicity and better adapted for tbe use incheap toys constructed of sheet metal and wire; but besides greatersimplicity .l also have succeeded in obtaining' for the thighs of thefigure a larger amplitude of throw without thereby forcing the lowerleg' to bend in the wrong direction to form an angle with the thigh insurpassing the straight or stretched line of the thigh and lower leg inthe advanced position.

Referring to Figs. l to -I of the drawings, is the body of the toyfigure, and a, a crankshaft traversing' said body and adapted to receiverotary motion through any suitable meanssuch, for instance, as a trainof wheels and a spring-barrel located within the body 7), but not shownin the drawings. The cranks c and @Z of said shaft are arranged at anangle of one hundred and eighty degrees with relation to each other foralternating the motions of the two legs.

If the invention should be applied to impart motion not to a pair oflimbs but to a single limb, such as an arm, the shaft a would requirebut a single crank.

Each of the cranks c and Z of the shaft a works within a slotf of a rode, the said slot f being' located at or near the upper end of said rod,the lower end of which is pivoted to the lower leg as at m, which lowerleg' It' is pivoted to the thigh fz", as at a. The thighs i are pivotedto the body by a common travelsing-pin /1y or by separate pins. It willbe seen that the rod c being reciprocated by the crank of shaft L willimpart an oscillating motion to the thigh as the lower end of said rod eis connected to the lower leg f, and the said lower leg is connected tothe thigh vi, as described. The traversing-pin L may pass through a sloty of the rod e, as shown; but this is not essential. It will be seenthat by making the cranks c (Z work within the slots f of the rod i ator near the upper end of said rod and by connecting the lower end ofsaid rod to the lower leg' an ample throw is imparted to the thighs i,owing to which ample throw the toy will perform a lively striding motionsuch as soldiers use to perform when marching.

It will be equally seen that while the cranks c Z of thc shaft a impartto the rod c and to the legs a reciprocating oscillating motion of amplethrow, thc said rod c is only slightly lifted and lowered by the saidcranks, owing to the slots j', within which the said cranks are working.Supposing the said slots fin the rods c were missing, the rod e duringevery revolution of the shaft l` would be lifted and lowered to the fullextent of the cranks, and in such case the rod e when approaching theend of its downward throw would force the lower leg' beyond the straightor stretched position with relation to the thigh i to form an angle withthe thigh n the wrong way.

To properly combine the oscillating motions of thc thighs with an amplethrow and of the lower legs bending' only in one direction, I have foundit necessary to employ a driving-rod, such as c, independent of thethighs t', instead of making the cranks c d IOO IIO

, compact andsimple arrangement of the driving means in toys of thischaracter.

Referring again to Figs. l to 4 of the drawings, the working order ofthe device is as follows: Supposing all parts to take the positionindicated in Fig. 1 when rotary motion of the crank-shaft a, is started,the crank c of said shaft a, will rise into the position indicated byFig. 2 and the rod e will be slightly lifted. The upper end of rod ewill be swung from the left to the right, while the lower end of saidrod will be swung in the opposite direction, thereby forcing the thighz' to follow the oscillating motion from the right to the left, while atthe same time the rod e in its rising motion pulls the lower leg la intothe bent-position shown in Fig. 2. As the crankshaft a moves on from theposition of Fig. 2 to the position of Fig. 3 the rod e will be furtherswung from the left to the right in its upper portion and in theopposite direction in its lower portion. The thigh z' thereby will beswung into its forward position, while the lower leg L slowly approachesto its straight or stretched position, as the Crank c, while descendingfrom its highest posi-tion (shown in Fig. 2) slides down in the slot fof rod e without forcing the said rod down to the full extent of thelowering motion of the crank. From the position of Fig. 3 the crank cmoves on to the position shown in Fig. 4. rIhe driving-rod e returns thethigh 2f into its central position, and as the said rod e takes itslowest position the lower leg becomes stretched to take a straight linewith the thigh e'. The shaft a still continuing its rotary motion thecrank c will now rise again from the position of Fig.4 to thestarting-point. (Shown in Fig. l.) The crank-pin c slides up within theslot f of the rod e without materially lifting the rod, and the positionof the lower leg k remains nearly the saine, as shown in Fig. 4, whilethe thigh t' is swung from the central position to the rear. It willagain be observed that if the slots f in the rods e should be omittedthe motions of the lower legs L could not be correct and natural, as thecranks would carry the rods e too far down in the descending motion andwould lift the rods ev too soon in the rising motion, thereby producinga false effect, as indicated above.

While one of the crank-pins c Z of shaft a imparts motion to onedriving-rod e, as described, the other crank-pin drives the other rod e,and as the two crank-pins c Z are set at an angle of one hundred andeighty degrees the legs will be moved in opposite directions.

I claim as my inventionl. In a toy, the combination, with a crankshaft,of a driving-rod slotted near one end to receive the crank-pin of saidshaft, a limb pivotally connected to the opposite end of saiddriving-rod and another limb pivotally connected both to the iirst-namedlimb, and to the body of the toy.

2. In a toy, the combination, with a cra-nkshaft, of driving-rodsslotted near one end, crank-pins set at angles with relation toeachother and working within said slots, lowe-r legs pivoted -to theopposite ends of said driving-rods, and thighs pivoted both to the saidunder legs and to the body of the toy.

A 8. In a toy, the combination, with a crankshaft, of a driving-rodslotted near one endl to receive the crank-pin, a lower limb pivoted' tothe opposite end of the driving-rod, and an upper limb pivoted to theiirst limb and connected to the body of the toy by a pivot passingthrough a slot in the medial portion of the driving-rod.

4. In a toy, the combination, with a crankshaft, of a driving-rodslotted near one end to receive the crank-pin, a lower limbl pivoted atone extremity to the iirst limb at one side of lthe driving-rod, thedriving-rod slotted in its medial portionA and fulcrumed on a pin fixedin the body of the toy, said pin also serving as a pivot to secu-re theother extremity of the upper limb to the toy-body.

5. In a toy, the combination, with a crankshaft, and crank-pins set atan angle to each other, of driving-rods slotted near one end to receivethe crank-pins and also slotted in their medial portions, a pin fixed inthe body of the toy and passing through-the medial slots to serve as afulcrum for the drive-rods, lower leg portions pivoted to the oppositeends of the driving-rods from the crank-pins, and thighs pivoted at oneextremity to the lower leg portions at one side of the driving-rodpivots and pivoted at the other extremity to the fulcrum-pin.

In testimony whereof I aflix my signature tothis specification in thepresence of two witnesses.

ERNST PAUL LEHMANN.

Witnesses v WOLDEMAR HAUPT, HENRY HAsPnR.

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